Grading Summary
These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below.
Date Taken:
10/13/2014
Time Spent:
06 min , 39 secs
Points Received:
10 / 10 (100%)
Question 1.
Question :
Which of the following statements summarizes the water situation in China that was discussed in your text?
Student Answer:
China has been able to avoid major water shortages due to its construction of the Three Gorges Dam, which provides electricity and agricultural water throughout China.
Due to the water-rich Yangtze River Basin, China has been able to provide clean water to much of the highly populated region, even in the face of growing population.
Due to its large population, China is experiencing water shortages that have significantly decreased numerous wildlife populations.
In the face of a growing population, China has begun to use desalination techniques to provide ample clean water to its people and agricultural soils.
All of the statements about water in China are true. Instructor Explanation:
The answer can be found in Section 5.3 of your text.
Points Received:
1 of 1 Comments:
Question 2.
Question :
A decrease in “food miles” will most likely increase the environmental impact of any given food.
Student Answer:
True
False Instructor Explanation:
The answer can be found in Section 3.5 of your text.
Points Received:
1 of 1 Comments:
Question 3.
Question :
What is the central theme of “The first green revolution” section in Chapter 3.1 of your text?
Student Answer:
The green revolution resulted in increased crop production without any environmental concerns, which generated a steep incline in human population growth.
The green revolution allowed for a rapid increase in high yield crops through the use of genetically modified seeds that allowed developing nations to survive in the face of famine.
The green revolution led to increases in crop production and human population. However, it also created a number of environmental concerns including the overuse of fertilizers and irrigation.
The green revolution allowed farmers to increase crop yields and profits substantially over a short period of time.
None of the above are the central theme. Instructor Explanation:
The answer can be found in Section 3.1 of your text.
Points Received:
1 of 1 Comments:
Question 4.
Question :
What is the central theme of “The case of Albuquerque” section in Chapter 5.4 of your text?
Student Answer:
In the face of a major water crisis, a number of governmental initiatives, including altered water-use codes, rebates, and decreased water use to more sustainable levels.
As the population of Albuquerque continues to grow, increased revenue from taxes will be able to solve the city’s water crisis.
The impending water crisis in Albuquerque was solved through the desalination of brackish water from a nearby canal.
Currently, Albuquerque is faced with a major water crisis that has no evident solution.
None of the above are the central theme. Instructor Explanation:
The answer can be found in Section 5.4 of your text.
Points Received:
1 of 1 Comments:
Question 5.
Question :
Which of the following statements about ground water is not true, according to your text?
Student Answer:
Underground aquifers hold approximately 99% of all the liquid fresh water.
More than 75% of underground water has a replenishment time of centuries or more, making it non-renewable.
Increased water withdrawal from underground aquifers makes them more susceptible to droughts.
Depletion of ground water may lead to land compaction that in turn decreases its ability to store water.
